What is the velocity of an object accelerating at 7.0m/s 2 after 3.0s when it is initially moving at 3.0m/s?

Sure, here's how you can calculate the velocity of an object given its acceleration, initial velocity, and time:

Step 1: Understand the formula The formula to calculate final velocity is: Vf = Vi + a*t Where: Vf = Final velocity Vi = Initial velocity a = Acceleration t = Time

Step 2: Plug in the given values In this case, the initial velocity (Vi) is 3.0 m/s, the acceleration (a) is 7.0 m/s^2, and the time (t) is 3.0 s.

Step 3: Perform the calculation Vf = 3.0 m/s + 7.0 m/s^2 * 3.0 s Vf = 3.0 m/s + 21.0 m/s Vf = 24.0 m/s

So, the velocity of the object after 3.0 seconds would be 24.0 m/s.